SULIT 4541/1 Kimia Kertas 1 Ogos 2013 1 ¼ jam HGIN PENGURUSN SEKOLH ERSRM PENUH N SEKOLH KEEMERLNGN KEMENTERIN PELJRN MLYSI PENTKSIRN IGNOSTIK KEMIK SP 2013 SIJIL PELJRN MLYSI KIMI Kertas 1 1 jam 15 minit rahan: JNGN UK KERTS SOLN INI SEHINGG IERITHU 1. Kertas ini mengandungi 50 soalan. 2. Jawab semua soalan. 3. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan. 4. nda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan. 5. Tiap-tiap soalan diikuti oleh empat pilihan jawapan,, dan. Pilih satu jawapan yang terbaik bagi setiap soalan dan hitamkan ruangan yang sepadan pada kertas jawapan objektif anda. Kertas ini mengandungi 27 halaman bercetak 4541/1 2013 Hak ipta PSPSK [Lihat Halaman Sebelah SULIT
SULIT 2 4541/1 1 Sublimation is a process when the solid change to gas. Which substance undergoes sublimation? Pemejalwapan adalah satu proses apabila pepejal bertukar kepada gas. ahan manakah mengalami pemejalwapan? Iodine Iodin arbon Karbon Sulphur Sulfur romine romin 2 Which substance contains 6.02 x 10 23 atoms? ahan manakah mengandungi 6.02x10 23 atom? 1.0 mol of carbon dioxide gas 1.0 mol gas karbon dioksida 1.0 mol of hydrogen gas 1.0 mol gas hidrogen 1.0 mol of oxygen gas 1.0 mol gas oksigen 1.0 mol of helium gas 1.0 mol gas helium 3 Which elements are located in Group 1 in the Periodic Table of Elements? Unsur-unsur manakah terletak dalam Kumpulan 1 dalam Jadual erkala Unsur? Sodium and caesium Natrium dan sesium Lithium and barium Litium dan barium Potassium and calcium Kalium dan kalsium Magnesium and sodium Magnesium dan natrium 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 3 4541/1 4 Which substance is an ionic compound? ahan manakah adalah sebatian ion? Ethanol Etanol mmonia mmonia Sodium oxide Natrium oksida Sulphur dioxide Sulfur dioksida 5 iagram 1 shows the set-up of apparatus of a chemical cell. Rajah 1 menunjukkan susunan radas bagi satu sel kimia. Y electrode Elektrod Y Zinc electrode Elektrod zink Electrolyte Elektrolit iagram 1 Rajah 1 Electrode Y is the negative terminal of the cell. What is Y? Elektrod Y adalah negatif terminal bagi sel itu. pakah Y? Iron Ferum Lead Plumbum opper Kuprum luminium luminium 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 4 4541/1 6 Which of the following is a diprotic acid? ntara berikut yang manakah asid diprotik? Nitric acid sid nitrik Ethanoic acid sid etanoik Sulphuric acid sid sulfurik Hydrochloric acid sid hidroklorik 7 Which salt is insoluble in water? Garam manakah tidak larut dalam air? Lead(II) nitrate Plumbum(II) nitrat Iron(II) chloride Ferum(II) klorida arium sulphate arium sulfat Sodium carbonate Natrium karbonat 8 Trophy and medal are normally made up of bronze. What is the composition of bronze? Piala dan pingat biasanya diperbuat daripada gangsa. pakah komposisi gangsa? opper and tin Kuprum dan stanum opper and zinc Kuprum dan zink Tin, copper and antimony Stanum, kuprum dan antimony Iron, carbon and chromium Ferum, karbon dan kromium 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 5 4541/1 9 Which reaction has the lowest rate of reaction? Tindak balas manakah mempunyai kadar paling rendah? Precipitation of salt Pemendakan garam ombustion of alcohol Pembakaran alkohol Fermentation of glucose Penapaian glukosa Neutralisation of acid and alkali Peneutralan asid dan alkali 10 iagram 2 shows the particles arrangement for the change of state of matter. Rajah 2 menunjukkan susunan zarah bagi pertukaran keadaan jirim. Process X Proses X iagram 2 Rajah 2 Which of the following is process X? ntara berikut yang manakah adalah proses X? ondensation Kondensasi Evaporation Penyejatan Sublimation Pemejalwapan Freezing Pembekuan 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 6 4541/1 11 Which statement is incorrect about unsaturated hydrocarbons? Pernyataan manakah yang tidak betul mengenai hidrokarbon tak tepu? Soluble in water Larut dalam air annot conduct electricity at any state Tidak mengkonduksi elektrik dalam sebarang keadaan ontain only carbon and hydrogen atoms Mengandungi hanya atom karbon dan atom hidrogen ontain at least one double bond between carbon atoms Mengandungi sekurang-kurangnya satu ikatan ganda dua antara atom-atom karbon 12 Which statement defines oxidation? Pernyataan manakah mendefinisikan pengoksidaan? Increase in oxidation number Penambahan nombor pengoksidaan Gain of hydrogen Penerimaan hydrogen Loss of oxygen Kehilangan oksigen Gain of electron Penerimaan electron 13 The reaction between silver nitrate solution and hydrochloric acid is an exothermic reaction. Which statement is correct about the reaction? Tindak balas antara larutan argentum nitrat dengan asid hidroklorik adalah tindak balas eksotermik. Pernyataan manakah betul tentang tindak balas itu? Heat is absorbed from surroundings Haba diserap daripada persekitaran The products formed are more stable than reactants Hasil tindak balas lebih stabil daripada bahan tindak balas The surroundings temperature increases during the reaction Suhu persekitaran meningkat semasa tindak balas The energy content of reactants is lower than the energy content of products Kandungan tenaga bahan tindak balas lebih rendah daripada kandungan tenaga hasil indak balas 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 7 4541/1 14 iagram 3 shows a decorative glass which is used in the house. The glass has the following properties. Rajah 3 menunjukkan satu kaca perhiasan yang digunakan di rumah. Kaca itu mempunyai ciri-ciri berikut. Optically transparent Lutsinar secara optik High density Ketumpatan yang tinggi High refractive index Indeks biasan yang tinggi iagram 3 Rajah 3 Which of the following glass has the above properties? Kaca manakah mempunyai ciri-ciri seperti di atas? Fused glass Kaca silika terlakur Soda-lime glass Kaca soda kapur orosilicate glass Kaca borosilikat Lead crystal glass Kaca plumbum Kristal 15 What is the function of aspartame? pakah fungsi aspartam? Stabiliser Penstabil Flavouring Perisa Preservative Pengawet ntioxidant ntipengoksida 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 8 4541/1 16 iagram 4 shows the set-up of apparatus for an experiment to determine the empirical formula of magnesium oxide. Rajah 4 menunjukkan susunan radas bagi satu eksperiment untuk menentukan formula empirik magnesium oksida. Tongs to remove lid Penyepit untuk mengangkat penutup Magnesium ribbon Pita magnesium Tripod stand Tungku kaki tiga Heat Pipe clay triangle Segitiga tanah liat Panaskan iagram 4 Rajah 4 The lid of crucible must be lifted at intervals during the heating process. What is the reason for this action? Penutup mangkuk pijar perlu diangkat sekali sekala semasa proses pemanasan. pakah sebab tindakan ini diambil? To get the accurate mass of magnesium oxide Untuk mendapatkan jisim yang tepat bagi magnesium oksida To allow oxygen enter into the crucible and react with magnesium Untuk membenarkan oksigen masuk ke dalam mangkuk pijar dan bertindak balas dengan magnesium To ensure the complete reaction of magnesium to form magnesium oxide Untuk memastikan tindak balas lengkap magnesium untuk membentuk magnesium oksida To release the white fumes that produce from combustion to the surroundings Untuk membebaskan wasap putih yang terhasil daripada pembakaran ke persekitaran 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 9 4541/1 17 Which isotope is used in radiotherapy for the treatment of cancer? Isotop manakah digunakan dalam radioterapi untuk mengubati penyakit kanser? obalt-60 Kobalt-60 Sodium-24 Natrium-24 arbon-14 Karbon-14 Phosphorus-32 Fosforus-32 18 Element M forms two different chlorides, Ml 2 and Ml 3. What is M? Unsur M membentuk dua jenis klorida, Ml 2 dan Ml 3. pakah M? Iron Ferum Zinc Zink opper Kuprum Lead Plumbum 19 Which substance is an electrolyte? ahan manakah adalah elektrolit? Glucose Glukosa Naphthalene Naftalena Ethanoic acid sid etanoik Ethyl ethanoate Etil etanoat 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 10 4541/1 20 iagram 5 shows the set-up of apparatus to investigate the electrical conductivity of substance P. Rajah 5 menunjukkan susunan radas untuk mengkaji kekonduksian elektrik bagi bahan P. P Substance P lights up the bulb because ahan P menyalakan mentol kerana iagram 5 Rajah 5 soluble in water. larut dalam air. has high melting point. mempunyai takat lebur yang tinggi. has free moving ions. mengandungi ion-ion yang bebas bergerak. has strong electrostatic forces between ions. mempunyai daya elektrostatik yang kuat antara ion-ion. 21 Which of the following is correct about weak alkalis? ntara berikut yang manakah betul mengenai alkali lemah? Unable to neutralise acid Tidak boleh meneutralkan asid The ph value is less than 7 Nilai ph kurang daripada 7 ble to change blue litmus paper to red oleh menukarkan kertas litmus biru ke merah Ionise partially in water to produce hydroxide ion Mengion separa dalam air untuk menghasilkan ion hidroksida 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 11 4541/1 22 Which reactants are suitable to prepare copper(ii) sulphate? ahan manakah sesuai untuk menyediakan kuprum(ii) sulfat? opper and sulphuric acid Kuprum dan asid sulfurik opper(ii) carbonate and sulphuric acid Kuprum(II) karbonat dan asid sulfurik opper(ii) oxide and sodium sulphate Kuprum(II) oksida dan natrium sulfat opper(ii) nitrate and sodium sulphate Kuprum(II) nitrat dan natrium sulfat 23 substance has the following properties: Satu bahan mempunyai ciri-ciri berikut: Hard and opaque Keras dan legap Inert towards chemicals Lengai terhadap bahan kimia Good insulator of heat and electricity Penebat haba dan elektrik yang baik Which substance has the above properties? ahan manakah mempunyai ciri-ciri di atas? eramic Seramik Polymer Polimer Metal Logam Glass Kaca 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 12 4541/1 24 The higher the concentration of reactant, the higher the rate of reaction. Which statement explains why the rate of reaction increases? pabila kepekatan bahan tindak balas meningkat, kadar tindak balas meningkat. Pernyataan manakah menerangkan mengapa kadar tindak balas meningkat? Kinetic energy of the particles increases Tenaga kinetik zarah-zarah bertambah The total surface area of the particles increases Jumlah luas permukaan zarah-zarah bertambah The number of particles per unit volume increases ilangan zarah-zarah per unit isi padu bertambah More particles are able to achieve lower activation energy Lebih banyak zarah-zarah berupaya untuk mencapai tenaga pengaktifan yang lebih rendah 25 iagram 6 shows the structural formula of substance X. Rajah 6 menunjukkan formula struktur bagi bahan X. iagram 6 Rajah 6 Which of the following are properties of substance X? ntara berikut yang manakah sifat-sifat bahan X? I II III IV Reacts with copper to produce hydrogen gas ertindak balas dengan kuprum menghasilkan gas hidrogen olourless liquid at room temperature ecair tidak berwarna pada suhu bilik Reacts with alcohol to form an ester ertindak balas dengan alkohol menghasilkan sejenis ester oes not dissolve in water Tidak larut di dalam air I and II I dan II I and IV I dan IV II and III II dan III III and IV III dan IV 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 13 4541/1 26 Which substance accepts electron? ahan manakah menerima elektron? ehydrating agent gen pengontangan Emulsifying agent gen pengemulsian Oxidising agent gen pengoksidaan Reducing agent gen penurunan 27 The thermochemical equation represents the neutralisation between hydrochloric acid, Hl and sodium hydroxide, NaOH solution. Persamaan termokimia mewakili tindak balas peneutralan antara asid hidroklorik, Hl dan larutan natrium hidroksida, NaOH. Hl + NaOH Nal + H 2 O H = -57 kj mol -1 Which substance is suitable to replace hydrochloric acid to obtain the same H value? ahan manakah yang sesuai menggantikan asid hidroklorik untuk memperoleh nilai H yang sama? Nitric acid sid nitric Ethanoic acid sid etanoik arbonic acid sid karbonik Phosphoric acid sid fosforik 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 14 4541/1 28 iagram 7 shows the elements in Period 3 of the Periodic Table of the Elements. Rajah 7 menunjukkan unsur-unsur dalam Kala 3 Jadual erkala Unsur. Na Mg l Si P S l r iagram 7 Rajah 7 Which of the following statement is correct? ntara pernyataan berikut yang manakah betul? rgon is denser than magnesium rgon lebih tumpat daripada magnesium hlorine is more electronegative than sulphur Klorin lebih elektronegatif daripada sulfur Sodium has smaller atomic size than aluminium Natrium mempunyai saiz atom lebih kecil daripada aluminium Magnesium has lower melting point than phosphorus Magnesium mempunyai takat lebur lebih rendah daripada fosforus 29 Which equations represent a neutralisation reaction? Persamaan manakah mewakili tindak balas peneutralan? I MgO + 2Hl Mgl 2 + H 2 O II H 3 OOH + KOH H 3 OOK + H 2 O III Mg + 2gNO 3 Mg(NO 3 ) 2 + 2g IV al 2 + H 2 SO 4 aso 4 + 2Hl I and II I dan II II and III II dan III I and IV I dan IV III and IV III dan IV 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 15 4541/1 30 iagram 8 shows a cut apple turns brown after 20 minutes. Rajah 8 menunjukkan sepotong epal yang bertukar perang selepas 20 minit. rown colour Warna perang perang iagram 8 Rajah 8 Which of the following is the reason why the cut apple turns brown and the type of food additive used to prevent it? ntara berikut yang manakah sebab mengapa epal yang dipotong itu bertukar perang dan jenis bahan tambah makanan yang digunakan untuk mengelakkannya? Reason Sebab The growth of microorganisms Pembiakan mikroorganisma Oxidation occur Pengoksidaan berlaku oncentration of salt is high Kepekatan garam adalah tinggi zo compound presents in the apple Sebatian azo wujud dalam epal Food additive ahan tambah makanan Preservative Pengawet ntioxidant ntipengoksida Flavouring Perisa olouring Pewarna 31 woman is always sad and anxious. Which medicine is suitable to treat this patient? Seorang wanita selalu sedih dan gelisah. Ubat manakah paling sesuai untuk mengubati pesakit itu? hlorpromazine Klorpromazin Tranquilizer Trankuilizer Penicillin Penisilin spirin spirin 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 16 4541/1 32 iagram 9 shows the the electron arrangement of a compound formed between carbon, and element Y. The letter Y is not the actual symbol of the element. Rajah 9 menunjukkan susunan elektron bagi sebatian yang terbentuk antara karbon, dan unsur Y. Huruf Y bukan simbol sebenar unsur itu. Y x x x X x x Y iagram 9 Rajah 9 What is the formula of the compound formed when lithium reacts with Y? pakah formula bagi sebatian yang terbentuk apabila litium bertindak balas dengan Y? LiY LiY 2 LiY 4 Li 2 Y 33 toms X and Y are isotopes. The nucleon number of atom Y is 37 and it has 20 neutrons. What is the electron arrangement of atom X? tom X dan Y adalah isotop. Nombor nukleon atom Y adalah 37 dan ia mempunyai 20 neutron. pakah susunan elektron atom X? 2.7 2.8.7 2.8.2 2.8.8.2 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 17 4541/1 34 iagram 10 shows an energy profile, X for one of the stage in the production of sulphuric acid through ontact Process. Rajah 10 menunjukkan profil tenaga, X bagi salah satu peringkat dalam penghasilan asid sulfurik melalui Proses Sentuh. Energy Tenaga X Y 2SO 3 2SO 2 + O 2 iagram 10 Rajah 10 What is the change needed to be done to obtain curve Y? pakah perubahan yang perlu dilakukan untuk mendapat lengkung Y? Heat the reactants at 450 o Panaskan bahan tindak balas pada suhu 450 o ompress the reactants at 1 atm Mampatkan bahan tindak balas pada tekanan 1 atm Increase the concentration of reactants Tingkatkan kepekatan bahan tindak balas Heat the reactants with the presence of vanadium(v) oxide Panaskan bahan tindak balas dengan kehadiran vanadium(v) oksida 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 18 4541/1 35 iagram 11 shows the apparatus set-up for the electrolysis of sodium nitrate solution, NaNO 3 using carbon electrodes. Rajah 11 menunjukkan susunan radas bagi elektrolisis larutan natrium nitrat, NaNO 3 menggunakan elektrod-elektrod karbon. Electrode X Elektrod X iagram 11 Rajah 11 What are the products at electrodes X and Y? pakah hasil tindak balas pada elektrod X dan Y? Electrode Y Elektrod Y Sodium nitrate solution Larutan natrium nitrat X Oxygen gas Gas oksigen Hydrogen gas Gas hidrogen Nitrogen gas Gas nitrogen Oxygen gas Gas oksigen Y Sodium Natrium Oxygen gas Gas oksigen Sodium Natrium Hydrogen gas Gas hidrogen 36 opper(ii) sulphate solution is electrolysed using carbon electrodes. Which half-equations represent the reactions at the anode and the cathode? Larutan kuprum(ii) sulfat dielektrolisiskan menggunakan elektrod-elektrod karbon. Setengah persamaan manakah mewakili tindak balas di anod dan di katod? node athode nod Katod u 2+ + 2e u 4OH 2H 2 O + O 2 + 4e 4OH 2H 2 O + O 2 + 4e 2H + + 2e H 2 4OH 2H 2 O + O 2 + 4e u 2+ + 2e u 2H + + 2e H 2 4OH 2H 2 O + O 2 + 4e 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 19 4541/1 37 iagram12 shows the set-up of apparatus for the decomposition of compound Q. Rajah 12 menunjukkan susunan radas bagi penguraian sebatian Q. Q Heat Panaskan Lime water ir kapur iagram 12 Rajah 12 When Q is heated, the lime water turns milky. What is compound Q? pabila Q dipanaskan, air kapur bertukar keruh. pakah sebatian Q? mmonium carbonate mmonium karbonat Potassium carbonate Kalium karbonat Sodium carbonate Natrium karbonat Zinc carbonate Zink karbonat 38 farmer discovered that his plants were not growing well because the soil was acidic. Which substance is used to overcome the problem? Seorang petani mendapati tanamannya tidak tumbuh dengan subur kerana tanahnya berasid. ahan manakah digunakan untuk mengatasi masalah tersebut? Zinc oxide Zink oksida alcium oxide Kalsium oksida Potassium hydroxide Kalium hidroksida Magnesium hydroxide Magnesium hidroksida 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 20 4541/1 39 iagram 13 shows curve I in a graph of volume of gas released against time for the reaction between excess zinc powder and 100 cm 3 of 1.0 mol dm -3 hydrochloric acid, Hl. Which of the following conditions represents curve II? Rajah 13 menunjukkan lengkung I dalam graf isi padu gas terbebas melawan masa bagi tindak balas antara serbuk zink berlebihan dengan 100 cm 3 asid hidroklorik, Hl 1.0 mol dm -3. ntara berikut keadaan manakah mewakili lengkung II? Volume of gas (cm 3 ) Isi padu gas (cm 3 ) I II Time (s) Masa (s) iagram 13 Rajah 13 oncentration of Hl (mol dm -3 ) Kepekatan Hl ( mol dm -3 ) Volume of Hl (cm 3 ) Isi padu Hl (cm 3 ) 0.5 100 1.0 50 2.0 50 2.0 25 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 21 4541/1 40 Which of the following shows the structural formula for 2-methylbut-2-ene. ntara berikut yang manakah menunjukkan formula struktur bagi 2-metilbut-2-ena. 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 22 4541/1 41 iagram 14 shows two experiments to investigate the effect of metals X and Y on the rusting of iron. Rajah 14 menunjukkan dua eksperimen untuk mengkaji kesan logam X dan Y terhadap pengaratan besi. Experiment Eksperimen Jelly solution + potassium hexacyanoferrate(iii) Larutan agar + kalium heksasianoferat(iii) air Iron nail and metal X Paku besi dan logam X Observation Pemerhatian No change Tiada perubahan Jelly solution + potassium hexacyanoferrate(iii) Larutan agar + kalium heksasianoferat(iii) air Iron nail and metal Y Paku besi dan logam Y lue spot formed Tompok biru terbentuk iagram 14 Rajah 14 rrange X, Y and iron in order of increasing tendency to release electrons. Susun X, Y dan besi dalam urutan pertambahan kecenderungan melepaskan elektron. Iron, X, Y esi, X, Y X, iron, Y X, besi, Y X, Y, iron X, Y, besi Y, iron, X Y, besi, X 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 23 4541/1 42 Table 1 shows temperature change obtained for two set of experiments. Jadual 1 menunjukkan perubahan suhu yang didapati bagi dua set eksperimen. Set Set I II Reactants ahan tindak balas Magnesium powder + 25 cm 3 of 0.2 mol dm -3 copper(ii) sulphate solution Serbuk magnesium + 25 cm 3 larutan kuprum(ii) sulfat 0.2 mol dm -3 Magnesium powder + 25 cm 3 of copper(ii) sulphate solution 0.4 mol dm -3 Serbuk magnesium + 25 cm 3 larutan kuprum(ii) sulfat 0.4 mol dm -3 Temperature change ( o ) Perubahan suhu ( o ) x Table 1 Jadual 1 What is the value of x? pakah nilai x? 2 0.5 0.25 43 Element X is located below potassium in the Periodic Table of Elements. X is not the actual symbol of the element. Which statement is correct about element X? Unsur X berada di bawah kalium dalam Jadual erkala Unsur. X bukan simbol sebenar unsur itu. Pernyataan manakah betul tentang unsur X? X is less dense than potassium X kurang tumpat daripada kalium X is less reactive than potassium X kurang reaktif daripada kalium X atom is smaller than potassium atom tom X lebih kecil daripada atom kalium X is more electropositive than potassium X lebih elektropositif daripada kalium 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 24 4541/1 44 Table 2 shows the proton number of four atoms of elements. Jadual 2 menunjukkan nombor proton bagi empat atom unsur. tom W X Y Z tom Proton number 12 8 18 17 Nombor proton Table 2 Jadual 2 Which elements react to form an ionic compound? Unsur-unsur manakah bertindak balas untuk membentuk sebatian ion? I W and X W dan X II W and Z W dan Z III X and Y X dan Y IV X and Z X dan Z I and II I dan II I and III I dan III II and IV II dan IV III and IV III dan IV 45 What is the number of atoms in 8.5 g of ammonia gas, NH 3? [Molar mass of NH 3 = 17 ; vogadro constant = 6.02 x 10 23 mol -1 ] erapakah bilangan atom dalam 8.5 g ammonia gas, NH 3? [Jisim molar NH 3 = 17 ; Pemalar vogadro = 6.02 x 10 23 mol -1 ] 0.5 x 6.02 x 10 23 0.5 x 4 x 6.02 x 10 23 8.5 x 6.02 x 10 23 8.5 x 4 x 6.02 x 10 23 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 25 4541/1 46 The equation represents the reaction between sulphuric acid and sodium hydroxide. Persamaan mewakili tindak balas antara asid sulfurik dan natrium hidroksida. H 2 SO 4 + 2NaOH K 2 SO 4 + 2H 2 O What is the volume of 1.0 mol dm -3 sodium hydroxide solution needed to neutralise 25.0 cm 3 of 1.0 mol dm -3 sulphuric acid? erapakah isipadu larutan natrium hidroksida 1.0 mol dm -3 yang diperlukan untuk meneutralkan 25.0 cm 3 asid sulfurik 1.0 mol dm -3? 12.5 cm 3 25.0 cm 3 50.0 cm 3 75.0 cm 3 47 Table 3 shows the volume of oxygen gas collected in the decomposition of hydrogen peroxide. Jadual 3 menunjukkan isi padu gas oksigen terkumpul dalam penguraian hidrogen peroksida. Time (s) Masa (s) Volume of oxygen (cm 3 ) Isi padu oksigen (cm 3 ) 0 30 60 90 120 150 180 210 0.0 7.0 14.5 20.5 26.2 30.5 30.5 30.5 Table 3 Jadual 3 What is the average rate of reaction in the second minute? erapakah kadar tindak balas purata dalam minit ke-2? 0.254 cm 3 s -1 0.218 cm 3 s -1 0.203 cm 3 s -1 0.195 cm 3 s -1 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 26 4541/1 48 iagram 15 shows a structural formula of an ester propyl ethanoate. Rajah 15 menunjukkan formula struktur bagi satu ester propil etanoat. H O H H H H O H H H H H iagram 15 Rajah 15 What are the structural formula of alcohol and carboxylic acid used to prepare the ester? pakah formula struktur alkohol dan asid karbosilik yang digunakan untuk menyediakan ester itu? lcohol arboxylic acid lkohol sid karbosilik H 3 H 2 OH H 3 OOH H 3 H 2 H 2 OH H 3 OOH H 3 H 2 H 2 OH H 3 H 2 OOH H 3 H 2 OH H 3 H 2 OOH 49 R is located between aluminium and iron in the reactivity series of metals. Which oxide is not reduced by R? R terletak antara magnesium dan ferum dalam siri kereaktifan logam. Oksida manakah tidak diturunkan oleh R? opper(ii) oxide Kuprum(II) oksida Magnesium oxide Magnesium oksida Silver oxide rgentum oksida Tin(II) oxide Stanum(II) oksida 4541/1 2013 Hak ipta PSPSK SULIT
SULIT 27 4541/1 50 The thermochemical equation represents the combustion of methanol, H 3 OH. Persamaan termokimia mewakili pembakaran methanol, H 3 OH. H 3 OH + 3/2 O 2 O 2 + 2H 2 O H = -728 kj mol -1 What is the mass of methanol needed to raise the temperature of 250 cm 3 of water by 27.8? [Molar mass of H 3 OH = 32; Specific heat capacity of water = 4.2 J g -1-1 ; ensity of water = 1 g cm -3 ] erapakah jisim metanol yang diperlukan untuk menaikkan suhu 250 cm 3 air sebanyak 27.8? [Jisim molar H 3 OH = 32; Muatan haba tentu air =4.2 J g -1-1 ; Ketumpatan air = 1 g cm -3 ] 2.56 g 1.88 g 1.28 g 0.79 g EN OF QUESTION PPER KERTS SOLN TMT 4541/1 2013 Hak ipta PSPSK SULIT